3-ROLLER ROLLING MACHINE can be finished for plate end pr-bending
and plate rolling without U-turn after plate is loaded one time.
Three rolls of machine are main driving rolls. The lifting of top
roll and horizontal moving of two bottom rolls are driven
hydraulically. Lifting displacement is controlled by computer,
which can be leveled automatically and displayed on screen.
Synchronous precision: ±0.2mm. Drop and reset of overturned bearing
body is driven hydraulically. There is the balance mechanism at the
tail of top roll to unload the produced work piece &
cylindrical shell. It has the moving type independent operating
station and safety interlock device which make the production more
conveniently and safely.

1. Main structure and work principle

A. This machine is symmetrical rolling machine, down up roller and
then let up and downRollers do opposite roll to bend steel plate.B. This machine composed of two parts those are working part welded
in whole chassis and moving part. Working part composed of left and
right bearing base, one up roller, two bottom rollers (the material
of the three rollers is 45#steel and do heat treatment), lifting
screw and turbine and other accessory parts. Down rollers drive up
roller to move, up roller can do up and down move by height way.
Drive part composed of main motor, main speed reducer and other
accessory parts.C. Bottom rollers were drove by main motor through main speed
reducer, output spindle of main speed reducer driven to two down
rollers by one group gears, the revolve direction of rollers
adjusted by main motor.D. Upper roll lifted by accessory motor through vice speed reducer
drive worm and worm wheel mechanism of right/left rolls bearing
base. That to let the lifting pole do up and down move.E. Unloading device is designed to remove the workpiece after drums
bended into shape. Before unloading the upper rolls move to up
limit position, the balance device on upper rolls ends hit upper
rolls, draw out the spindle of the pin, then to remove the
workpiece.